The LE33ACZ is a high-performance, low dropout (LDO) voltage regulator from STMicroelectronics, designed to deliver a fixed output voltage with high accuracy. This component is an ideal choice for power-sensitive applications due to its low quiescent current and low dropout voltage, ensuring efficient power management and extended battery life in portable devices.

Key Features

• Output Voltage: The LE33ACZ provides a fixed output voltage of 3.3V, which is a common requirement for many digital circuits and microcontroller-based systems.
• Low Dropout Voltage: With a dropout voltage typically as low as 0.2V at 100mA load, this regulator can operate effectively even when the input voltage is very close to the output voltage, enhancing efficiency.
• Output Current: It can supply up to 100mA of output current, suitable for a variety of low-power applications.
• High Accuracy: The output voltage is guaranteed to be within ±0.5% at 25°C and ±1% over the full temperature range, providing a reliable and consistent power supply.
• Low Quiescent Current: The device features a very low quiescent current of typically 1µA in off mode (not supplying load) and 50µA in on mode, making it an excellent choice for battery-powered applications.
• Thermal Protection: It includes thermal shutdown protection that turns off the output when the junction temperature exceeds the thermal shutdown threshold, thereby protecting the device from damage due to overheating.
• Short Circuit Protection: The built-in short-circuit protection feature helps to safeguard the regulator and the load from potential damage caused by short circuits.

Applications

The LE33ACZ is versatile and can be used in a wide range of applications, including:

• Battery-powered devices
• Portable and handheld equipment
• Microcontroller power supply
• Power management for consumer electronics

With its combination of low power consumption, high accuracy, and robust protection features, the LE33ACZ from STMicroelectronics is a reliable choice for designers looking to optimize power in their electronic projects.